Season of birth and anorexia nervosa
نویسندگان
چکیده
Our aim was to investigate whether there is a season-of-birth effect in anorexia nervosa. In a meta-analysis, we compared the distribution of anorexia births (n = 1293) from four independent UK cohorts to that of the general UK population (n = 21 914 037), using both the Walter & Elwood seasonality and chi-squared tests. We found an excess of anorexia births from March to June (odds ratio (OR) = 1.15, 95% CI 1.03-1.29, P = 0.012) and a deficit from September to October (OR = 0.8, 95% CI 0.68-0.94, P = 0.007). These results indicate that environmental risk factor(s) are operative during gestation or immediately after birth and their identification will be important for disease prevention strategies.
منابع مشابه
A growing body of evidence suggests a role for season of birth in determining susceptibility to a wide range of psychiatric disorders
determining susceptibility to a wide range of psychiatric disorders such as schizophrenia, bipolar disorder, major depression and suicidal behaviour. This hypothesis has been investigated in people with anorexia nervosa and other eating disorders; however, although an excess of spring births has been suggested, results are conflicting and rarely achieve statistical significance. The reasons for...
متن کاملComparing effects: a reanalysis of two studies on season of birth bias in anorexia nervosa
BACKGROUND Outcomes from studies on season of birth bias in eating disorders have been inconsistent. This inconsistency has been explained by differences in methodologies resulting in different types of effect sizes. The aim of the current study was to facilitate comparison by using the same methodology on samples from two studies with differing conclusions. METHODS The statistical analyses u...
متن کاملVery preterm birth, birth trauma, and the risk of anorexia nervosa among girls.
BACKGROUND Obstetrical complications, based on parental recall, have been reported to be associated with development of anorexia nervosa. We used prospectively collected data about pregnancy and perinatal factors to examine the subsequent development of anorexia nervosa. METHODS This population-based, case-control study was nested in cohorts defined by all liveborn girls in Sweden from 1973 t...
متن کاملLow birth weight in the offspring of women with anorexia nervosa.
A growing body of literature has investigated the association between maternal anorexia nervosa and pregnancy outcomes. Infant low birth weight is associated with a number of neurodevelopmental and physical sequelae; however, consistent results on its association with maternal anorexia nervosa are scant. Therefore, a systematic review and meta-analysis of the existing literature were undertaken...
متن کاملEvaluation of Family Relations, Self-control and Alexithamia as the Predictors of Anorexia Nervosa
Aim: A mental disorder known as anorexia is a relatively common disorder in the recent decades and has affected many people, especially young girls. This study aims to predict the relationship between anorexia as the independent variable and family relations, self control, and alexithymia as predictor variables. Methods: This study is a descriptive-correlational type. The study sample consiste...
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عنوان ژورنال:
دوره 198 شماره
صفحات -
تاریخ انتشار 2011